.TH GNUNET\-AUTO\-SHARE "1" "18 Jun 2012" "GNUnet"
.SH NAME
gnunet\-auto\-share \- a command line tool to automatically share an entire directory with other users
.SH SYNOPSIS
.B gnunet\-auto\-share
[\fIOPTIONS\fR] DIRNAME
.SH DESCRIPTION
.PP
In order to share files with other GNUnet users, the files must first be made
available to GNUnet.  This tool can be used to automatically share all files
from a certain directory.  The program will periodically scan the directory
for changes and publish files that are new or that changed on GNUnet.
Which files have already been shared is remembered in a ".auto-share" file
in the shared directory.  You can run the tool by hand or automatically by
adding the respective options to your configuration.  gnunet\-auto\-share
has many options in common with gnunet\-publish, but can only be used to
index files.
.PP
You can use automatic meta\-data extraction (based on libextractor).
.PP

\fB\-c \fIFILENAME\fR, \fB\-\-config=FILENAME\fR
Use alternate config file (if this option is not specified, the
default is ~/.config/gnunet.conf).

.TP
\fB\-D\fR, \fB\-\-disable\-extractor\fR
Disable use of GNU libextractor for finding additional keywords and metadata.

.TP
\fB\-h\fR, \fB\-\-help\fR
Print a brief help page with all the options.

.TP
\fB\-L \fILOGLEVEL\fR, \fB\-\-loglevel=\fILOGLEVEL\fR
Change the loglevel.  Possible values for LOGLEVEL are
ERROR, WARNING, INFO and DEBUG.

.TP
\fB\-p \fIPRIORITY\fR, \fB\-\-prio=\fIPRIORITY\fR
Executive summary: You probably don't need it.

Set the priority of the published content (default: 365).  If the local
database is full, GNUnet will discard the content with the lowest ranking.
Note that ranks change over time depending on popularity.  The default
should be high enough to preserve the locally published content in favor
of content that migrates from other peers.

.TP
\fB\-r \fILEVEL\fR, \fB\-\-replication=\fILEVEL\fR
Set the desired replication level.  If CONTENT_PUSHING is set to YES, GNUnet
will push each block (for the file) LEVEL times to other peers before doing
normal "random" replication of all content.  This option can be used to push
some content out into the network harder. Note that pushing content LEVEL
times into the network does not guarantee that there will actually be LEVEL
replicas.

.TP
\fB\-v\fR, \fB\-\-version\fR
Print the version number.

.TP
\fB\-V\fR, \fB\-\-verbose\fR
Be verbose.  Using this option causes gnunet\-publish to print progress
information and at the end the file identification that can be used to download
the file from GNUnet.


.SH SETTING ANONYMITY LEVEL

The \fB\-a\fR option can be used to specify additional anonymity constraints.
If set to 0, GNUnet will publish the file non-anonymously and in fact sign
the advertisement for the file using your peer's private key.  This will
allow other users to download the file as fast as possible, including using
non-anonymous methods (DHT, direct transfer).  If you set it to 1 (default),
you use the standard anonymous routing algorithm (which does not explicitly
leak your identity).  However, a powerful adversary may still be able to
perform traffic analysis (statistics) to over time infer data about your
identity.  You can gain better privacy by specifying a higher level of
anonymity, which increases the amount of cover traffic your own traffic will
get, at the expense of performance.  Note that regardless of the anonymity
level you choose, peers that cache content in the network always use anonymity
level 1.

The definition of the ANONYMITY LEVEL is the following.  0 means no anonymity
is required.  Otherwise a value of 'v' means that 1 out of v bytes of "anonymous"
traffic can be from the local user, leaving 'v-1' bytes of cover traffic per
byte on the wire.  Thus, if GNUnet routes n bytes of messages from foreign
peers (using anonymous routing), it may originate n/(v-1) bytes of data in
the same time\-period. The time\-period is twice the average delay that
GNUnet defers forwarded queries.

The default is 1 and this should be fine for most users.  Also notice that if
you choose very large values, you may end up having no throughput at all,
especially if many of your fellow GNUnet\-peers all do the same.


.SH EXAMPLES
.PP

\fBBasic example\fR

Share a directory "$HOME/gnunet\-share/":

 # gnunet\-auto\-share $HOME/gnunet\-share/ &


\fBBasic configuration\fR

Share a directory "$HOME/gnunet\-share/":

 [gnunet-auto-share]
 OPTIONS = $HOME/gnunet\-share
 IMMEDIATE_START = YES # start this service when the peer starts

.SH FILES
.TP
~/.config/gnunet.conf
GNUnet configuration file
.SH "REPORTING BUGS"
Report bugs to <https://gnunet.org/bugs/> or by sending electronic mail to <gnunet\-developers@gnu.org>
.SH "SEE ALSO"
\fBgnunet\-fs\-gtk\fP(1), \fBgnunet\-publish\fP(1), \fBgnunet\-search\fP(1), \fBgnunet\-download\fP(1), \fBgnunet.conf\fP(5), \fBextract\fP(1)
